SDS Volume (2414)
Volume 60. Halogenated Methanes with Water, p None
Original Measurements
Pavlovskaya, E. M.; Charykov, A. K.; Tikhomirov, V. I.; J. Gen. Chem. USSR, 1977, 47, 2230-4.
Variables:
Room Temp:
293
$\pu{K}$
Concentration
Prepared by:
Method/Apparatus/Procedure:
Trichloromethane was introduced from a microburet into an aqueous solution of rubidium chloride which contained octanoic acid as indicator. The mixture was vigorously stirred. The pH of the solution at first remained constant right up to the appearance of a second phase, i. e., up to the saturation of the aqueous phase with trichloromethane, after which the pH began to rise. The solubility was calculated from the volume of the aqueous phase and the volume of trichloromethane used for the saturation.
Source and Purity of Materials:
- Source and purity not given.
- Source and purity not given.
- Distilled (compiler).
Estimated Errors:
Ambient temperature: ±0.5 K (compiler).
Mass concentration (m/v) (1): ±10%.
Components:
- Trichloromethane, $\ce{ CHCl3 }$; [67-66-3] NIST WebBook
- Rubidium chloride, $\ce{ RbCl }$; [7791-11-9] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ (°C) | $C_{1}$ (mol/m3) | $C_{2}$ (mol/dm3) | w1 | $x_{1}$ |
|---|---|---|---|---|
| 20 | - | 0.5 | - | - |
| 20 | 58.5 | 1.0 | 0.6454 | 1.0920 x 10-3 |
| 20 | - | 1.5 | - | - |
| 20 | 46.0 | 2.0 | 0.4738 | 9.049 x 10-4 |
| 20 | 43.5 | 2.5 | 0.4635 | 8.751 x 10-4 |
| 20 | 39.7 | 3.0 | 0.3852 | 8.449 x 10-4 |
